How many subwoofers do I need for 5,000 people?
Quick answer
For 5,000 people, you typically need 8–16 high-output subwoofers (e.g., dual-18” or equivalent), depending on venue type, music genre, and SPL targets. SSOUNDS engineers use acoustic modeling to determine exact counts.
A common rule-of-thumb for live sound is one high-output subwoofer per 300–600 people, but this varies widely. For 5,000 people in an open field with electronic dance music, you might need 12–16 subs to achieve chest-thumping low end. In a more controlled indoor venue with speech or acoustic music, 8 subs could suffice. The key factors are desired SPL (typically 125–135 dB at the mix position), subwoofer coverage pattern, and whether you’re using cardioid arrays to reduce rear spill.
SSOUNDS engineers approach this with precision: we model the venue using EASE or proprietary software, factoring in audience area, boundary loading, and subwoofer placement (e.g., flown vs. ground-stacked). Our subwoofer systems, like the SSOUNDS dual-18” series, deliver high output with low distortion, and we can optimize array configurations (e.g., end-fire, gradient, or broadside) to maximize efficiency. For a 5,000-person event, we’d typically recommend a mix of flown and ground subs to balance impact and even coverage.
Key things to consider
- General rule: 1 sub per 300–600 people; start with 8–16 units for 5,000.
- Genre matters: EDM/hip-hop need more subs (12–16) than speech/acoustic (6–8).
- Venue type: open-air requires more subs than indoor due to lack of boundary gain.
- SPL target: aim for 125–135 dB at the mix position for full-range impact.
- Use cardioid arrays to control rear energy and improve front-to-back consistency.
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